1. The First Clinical Medical College of Jinan Universtiy, Guangzhou 510632, P.R. China
2. Department of Otolaryngology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China
3. Department of Oncology, The First Affiliated Hospital, Jinan University, Guangzhou 510632, P.R. China
4. Medical Research Center, Youjiang Medical University for Nationalities, Baise 533000, P.R. China
5. Department of Neurology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, P.R. China